Dust and Environmental Monitoring by Dwyer Instruments

Dwyer’s extensive range is functional and specified to many
industries. The range includes:

The SERIES PMT2 Particulate Transmitter is
designed to measure particulate emission levels from dust collector discharge.
Using DC coupled electrostatic induction sensing technology, the transmitter
monitors a pA current that is generated as particulate passes near the probe; a
4 to 20 mA signal will vary based on the particulate level. The PMT2 offers 6
sensitivity ranges allowing the user to choose the range that will best fit the
application. The range and test selector switch can also be set to output a 4
mA or 20 mA signal to assist with set up or trouble shooting. Averaging time
setting can be used to dampen the signal if desired.

The SERIES SVT Solenoid Valve Enclosure with
Timer is a compact, reliable, and economic package that combines a timer board
and solenoid valve enclosure into one package. Each model is available with 2,
4, or 6 valves, but expansion modules can easily be daisy chained for a maximum
of 60 outputs.

The SERIES DCT1000 Dust Controller Timer Controllersimplifies
on-demand cleaning requirements by eliminating the need for external devices
such as pressure switches, relays, and timers. The modular design allows for
use as a continuous cleaning control or on-demand cleaning control using the
optional plug-in pressure module. The DCT1000 is the same size for 6, 10, and
22 channels, allowing one board size to be the standard on one enclosure.

The SERIES DCV/RDCV Dust Collection Valvesare
ideal for use with the Series DCT1000 and Series DCT500 duct collection timer
boards for controlling the air pulse in jet pulse type dust collectors to clean
the filters. Both the Series DCV and RDCV have the option for either coupling
or NPT connections. The coupling connection allows for a quick and simple
installation. Only the stub pipe and blowtube need to be cleaned and deburred
before the valve is fit into position. The “T” Series DCV has female threaded
connections. Both the “C” and “T” versions have a 90° angle between the inlet
and outlet the most suitable configuration for pulse valve applications. The
design offers not only ease of installation, but also minimal airflow
restriction for an exceptional cleaning pulse. The valves are offered in both
integrated and remote coil configurations.

Using solid state technology, the SERIES 3000MR &
3000MRS Photohelic® Switch/ Gages combine the functions of a precise,
highly repeatable differential pressure switch with a large easy-to-read analog
pressure gage employing the durable, time-proven Magnehelic® gage design.
Switch setting is easy to adjust with large external knobs on the gage face.
Gage reading is unaffected by switch operation - will indicate accurately even
if power is interrupted. Solid state design now results in greatly reduced size
and weight. Units can be flush mounted or surface mounted with hardware supplied.
3000MR models employ versatile electromechanical relays with gold over silver
contacts - ideal for dry circuits. For applications requiring high cycle rates,
choose 3000MRS models with SPST (N.O.) solid state relays. All models provide
both low and high limit control and include 18-inch (45 cm) cable assemblies
for electrical connections. Compatible with air and other non-combustible,
non-corrosive gases, they can be used in systems with pressures to 25 psig
(1.725 bar). Optional construction is available for use to either 35 psig (2.42
bar) or 80 psig (5.51 bar).

13/03/09 - W. E. Anderson, a division of Dwyer Instruments have released the new series 275 PRECISOR III electro-pneumatic positioner. The series 275 PRECISOR III electro-pneumatic positioners combine an easy to

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